Riveting-machine.



G. SNODGRASS.

mivmme MACHINE;

APPLI' K-iTION PILELD JUNE 5,1'913' 1,089,28 1 Patented i'ir. 3, 1914.

ATTORNEYS UNITED STATEBIPENT OFFICE.

CHARLEY SNODGRASS, OF LOS ANGELES, CALIFORNIA. ASSIGNOR OF ONE-FOURTH TO FRITZ KIEHN, ONE-FOURTH TO JULIUS ZAHL, AND ONE-FOURTH TO HEINRICH ILLETSCHKO, ALL OF LOS ANGELES. CALIFORNIA.

' RIVETING-MACHINE.

Specification of Letters Patent.

Patented Mar. 3, 1914.

Application filed June 5. 1913. Serial No. 772,013.

To all 'whom it may concern:

Be it known that I, CHARLi-ZY SXononAss, a citiz n of the United States, and a resident of Los Angeles, in the county of Los Angela-s and State f California. have invented a new and Improved Riveting-Machine, of which the, following is a full. clear. and exact descri 'ition.

This invention relates to improvements in rivcting machines, and has for an object to provide an improved structure whi h will evenly rivet or upset the end of a bolt. rivet, or other similar article with a minimum amount of noise.

Another object of the invention is to provide a rapidly rotating riveting head formed with rotating rollers acting as the contact members for performing the upsetting operation.

In carrying out. the objects of the invention, a. rivet head is provided, having a shank extending therefrom. The riveting head is formed so as to receive a plurality of rollers which in operation are pressed against the end of the ri\ ct while the head is rotated rapidly. A shank extending from the rivet head is journalcd in a suitable pressure member so as to reduce the friction to a minimum and allow ample pressure to be brought to bear for performing the riveting operation.

A practical embodiment of the invention is reprc cnted in the accompanying drawings forming a part of this specification in which similar characters of reference indicate correspoiuli'ug parts in all the views.

Figure 1 is a vertical longitudinal section through a machine or tool emhtalying h j vention: Fig. 2 is an end view of the riveting head; and Fig. I is an enlarged detail fragmentary sectional view through the riveting head showing the support for one oi the rollers.

Referring to the accompanying drawings by numerals, 1 indicates a pair of plates. and 3 a rivet. Arranged to rest upon head 3 of rivet i2 arc a plurality of rollers 4. mounted in a head 5. inch of these rollers is provided with journal members at the inner end fitting into suitable bore in head 5. and journal members at the outer cud lilting into screw plug (3 (Fig. 3) which carry antifriction rollers 7. The rollers 4 are preferably f rmed tapering from the outer end to the inner end and are properly inclined for providing a proper tapering head 3 on rivc :2 when used. The head 5 of the r1vcting 1: chine or tool is provided with a shank to whi h is secured a flexible driving member 9. designed to be driven from any desired source of power and at any speed, preferably at a high speed. Antifriction members 9 and 10 are used for journaling the shank S properly in place in the casing 11. The casing 11 is provided with pressure members 12. The pressure members 12 may be manually used whenever desired, or mechanical means may be used for pressing the same to 'ard rivct 2. By this construction and arrangement the usual noise caused by riveting machines is eliminated, and yet a perfectly tru and properly shaped head is provided.

Having thus described my invention I claim as new and desire to secure by Let ters Patent 1. In a riveting machine of the class dcscribcd, a head formed with a tapering socket. a plurality of tapering rollers arranged in the bottom of said socket whereby the rollers may act near the center of said socket, a shank extending from said head. a sleeve surrounding said shank and acting on said head and said shank, and a pressure mcmbcr connected with said sleeve for providing means for holding the head in an op erative position against said rivct.

2. In a riveting device of the character described, a rotatable head. a plurality of ccnverging rollers arranged in said head. each of said rollers being formed with piu ties atv the end. said head being formed with sockets near the ccntcr for acctmnnodating one end of said rollers and a removable journal member arranged at the outer ends of said rollers for supp rting said rollers. means connected with said headfor rotating the same and means a sociatcd with said head for applying pressure tlu-reto.

In testimony whereof I have signed my name to this specification in the presence of two subscribing u itncsscs.

(I IARIIIIY SXODGRASS.

\Vitnesses Max E. Socm, Enwa in) ST I my. 

